debug: surplus_w in API + Live-Tab anzeigen

haos-addon/src/main.py

@@ -522,7 +522,8 @@ def api_get_surplus_devices():
         devices = State.surplus_devices_cfg
         z2m_base = State.z2m_base
     states = _surplus_ctrl.get_states() if _surplus_ctrl else {}
-    return jsonify({"devices": devices, "z2m_base": z2m_base, "states": states})
+    surplus_w = _get_pv_surplus()
+    return jsonify({"devices": devices, "z2m_base": z2m_base, "states": states, "surplus_w": surplus_w})
 
 @app.post("/api/surplus-devices")
 def api_save_surplus_devices():

haos-addon/src/web/index.html

@@ -1079,10 +1079,15 @@ function renderSurplusStatus(surplusData) {
       </div>`;
     }).join('');
   if (!rows) return '';
+  const surplusW = surplusData.surplus_w ?? null;
+  const surplusInfo = surplusW !== null
+    ? `<span style="font-size:11px;color:var(--text-dim);margin-left:auto">${surplusW >= 0 ? '+' : ''}${Math.round(surplusW)} W Überschuss</span>`
+    : '';
   return `<div class="inv-section">
     <div class="inv-header">
       <div class="inv-title">Überschuss-Geräte</div>
       <div class="inv-badge ok">Z2M</div>
+      ${surplusInfo}
     </div>
     <div style="padding:0 2px">${rows}</div>
   </div>`;